75 Knock Knock Jokes Guaranteed to Crack You Up

Check out our top picks for the most hilarious knock knock jokes that are sure to get your friends and family belly laughing.

Here are two fundamental truths. Truth #1: knock-knock jokes are juvenile and corny. Truth #2: when anybody says to you “Knock knock,” it’s almost physically impossible not to respond with “Who’s there?” We have to know the answer. It’s an involuntary reflex. There’s something hardwired into our brains that needs to complete the knock-knock exchange. Maybe it’s because even the worst knock-knock joke is surprising. Anybody who reacts to a knock-knock joke by saying “I totally saw that coming” is lying through their teeth. No, you didn’t. If the most important ingredient in comedy is surprise, then knock-knock jokes might very well be the truest form of comedy. Even when they’re awful, they’re all about surprise.

We went through thousands—and yes, there are thousands if not millions of knock-knock jokes out there—and found 60 that represent the absolute best knock-knock jokes and show off this truly American art form. Read them, share them with your friends, and try to pretend you didn’t just laugh a little.